
Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Dunnington, Thoracic Surgeon in Saint Helena, CA?
Dr. Gansevoort Dunnington, MD is a Thoracic Surgeon, who primarily practices in Saint Helena, CA. Dr. Dunnington completed his residency at Va Commonwealth Univ Hlth Sys, General Surgery. Dr. Dunnington is fluent in English, and is currently seeing new patients. Dr. Dunnington’s practice accepts Medicare, Aetna, Cigna, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Dunnington’s office at (707) 963-7200.
What are Areas of Expertise for Dr. Dunnington?
Dr. Gansevoort Dunnington, MD is a highly-rated, board-certified Thoracic Surgeon known for expertly diagnosing, treating, and managing a wide array of related conditions and procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Dunnington empowers patients to confidently navigate their health journey, specializing in Cardiac Surgery-Complex, Heart Valve Surgery-Aortic, Heart Valve Surgery-Mitral, Lung Cancer, Maze Procedure for Atrial Fibrillation, Video Assisted Thoracic Surgery (VATS), and comprehensive wellness support. Serving the Saint Helena, CA community, Dr. Dunnington is dedicated to enhancing lives through expert, patient-centered care.
Where did Dr. Dunnington go to medical school and complete their residency?
Residency: Va Commonwealth Univ Hlth Sys, General Surgery | Stanford Univsersity-General Surgery
Medical School: VA Commonwealth University School Of Medicine
What languages does Dr. Dunnington speak?
Dr. Dunnington and their clinical team can communicate with patients in the following languages:
English
What conditions does a Thoracic Surgeon like Dr. Dunnington typically treat?
As a Thoracic Surgeon, Dr. Dunnington diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Dunnington. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.
Also known as:
- Atrial Fibrillation
- Afib
- A-fib
- Irregular heart rhythm
ICD-10 Codes:
- I4891: Unspecified atrial fibrillation
Also known as:
- Follow-up After Treatment (Non-Cancer)
- Post-Treatment Check-up
- Aftercare Visit
- Recovery Monitoring Exam
ICD-10 Codes:
- Z09: Encounter for follow-up examination after completed treatment for conditions other than malignant neoplasm
Does Dr. Dunnington accept my insurance?
Dr. Dunnington accepts most major insurance plans. Important: Please call our office at (707) 963-7200 before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Dunnington accept in Saint Helena, CA?
Dr. Dunnington in Saint Helena, CA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Alignment Healthcare
All Other Third Party
AllCare Health
Blue Cross Blue Shield of Michigan
CVS Health (formerly Aetna)
Medicare
St. Joseph Health System (CA)
Sutter Health
UnitedHealth Group
Unknown
View All Insurances
Where is Dr. Dunnington's office located?

Adventist Heart and Vascular Institute
6 Woodland Road, Suite 304
Saint Helena, CA 94574
(707) 963-7200
What is Dr. Dunnington's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Dunnington's National Provider Identifier (NPI) number is 1336335140.
What common questions do patients ask about Dr. Dunnington?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Dunnington
What is Dr. Gansevoort Dunnington's specialty?
Dr. Dunnington is a Thoracic Surgeon near Saint Helena, CA.
What does a Thoracic Surgeon do?
A thoracic surgeon is a healthcare expert with specialization in the surgical, perioperative, and critical care of patients with conditions affecting the chest. Their expertise encompasses the surgical treatment of coronary artery disease, lung, esophageal, and chest wall cancers, tracheal abnormalities, and issues with the great vessels and heart valves. They also address congenital anomalies, mediastinal tumors, and diaphragm diseases. Additionally, thoracic surgeons manage airway issues and chest injuries as part of their medical specialty.
Is this Dr. Gansevoort Dunnington affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Dunnington is affiliated with Adventist Health And Rideout which is a Castle Connolly Top Hospital. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
When to see a Thoracic Surgeon?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see a Thoracic Surgeon. Explore insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Gansevoort Dunnington accepting new patients in Saint Helena, CA?
Yes, Dr. Gansevoort Dunnington is accepting new patients at this time.
Does Dr. Gansevoort Dunnington offer online booking?
Please contact Dr. Dunnington's office at (707) 963-7200 for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Gansevoort Dunnington?
Please contact Dr. Dunnington's office at (707) 963-7200 for information regarding telehealth appointment availability or for scheduling assistance.
Other Thoracic Surgeon Near Saint Helena, CA

Dr. Aaron Kime, MD is a Thoracic Surgeon, who primarily practices in St. Helena, CA.
MH
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Dr. Manly Hyde, MD is a Thoracic Surgeon, who primarily practices in Saint Helena, CA with 2 additional practice locations. He has been practicing for over 43 years and is board certified.
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Thoracic Surgeon
Dr. Ramzi Deeik, MD is a Thoracic Surgeon, who primarily practices in Santa Rosa, CA with 2 additional practice locations. He has been practicing for over 24 years and is board certified.
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